Design of Prestressed Concrete Structures

allowable stress amount applied assumed bars bending bond stress bottom fiber C-line c.g.s. line center of pressure composite section compressive stress computed concordant cable concrete section continuous beam cracking creep crete curve dead load deflection diagram diameter due to prestress eccentricity effective prestress elastic theory elongation end anchorages example external load factor of safety failure falsework fiber stress flange flexural formula formwork frictional loss girder grout Hence high-tensile steel initial prestress jacking length lever arm limit linear transformation live load load factors loss of prestress maximum method midspan modulus moments Non-prestressed reinforcement obtained post-tensioned pre-tensioned pressure prestressed beam prestressed concrete prestressed-concrete beams prestressing steel principal tension produced ratio reinforced concrete reinforced-concrete resisting result shear shrinkage span strain strands structures T. Y. Lin tendons tensile stress tests top fiber transfer transverse ultimate load ultimate strength unbonded wires